Find hidden pictures in Android Device

1. Open My Files app.
2. Tap the Menu key and then select Settings.
3. Check the box besides the Show hidden files option to enable this option.
4. Tap the Back key.
5. Tap All files.
6. Tap Device storage.
7. Scroll down to find the folder named .hide and then tap it to open it.
8. Tap Island (I don't know why Samsung used it as the folder name. I think it may be different in other phones so please let me know if your phone has another folder name).
9. Now you should see all pictures you have hidden by using the hide items option in the Gallery app are displayed here.
10. Copy/move and then paste the desired hidden pictures to another folder. Use the following steps if you don't know how to do so:
• Select the desired pictures you want to copy/move.
• Tap the three horizontal line icon  located at the top right corner of the screen and then tap Copy to copy the selected files or tap Move to cut the selected files.
• Navigate to the required folder you want to paste the files.
• Tap Paste here.
11. Once the selected files are copied or moved to another folder, they should be displayed again in the Gallery app.

As a note, this method also can be applied to retrieve hidden video files that you have hidden using the same way from the Gallery app. You can also perform this method by using another third-party File Manager app (e.g: ES File explorer, Astro File Manager, etc).

How to fix Google Play Error Codes(403,491,495,919,921)

Google Play will provide a pop-up error message when there is an issue installing or updating your apps. Unfortunately, the error message text is very brief and doesn't explain how you can fix it. For example, error 921:

"Unknown error code during application install (921)."

Error 403

Solution: This issue usually comes up on devices with multiple accounts. Make sure you're accessing the Google Play Store from the correct account. Next, uninstall the app you were trying to update, then re-download from the correct account.

Error 491

Solution: Remove your current Google account, re-add the account, and then clear data from the Google Services app (Settings > Application Manager > Google Services).

Error 495

Solution: Delete the data from both the Google Play and Google Services Framework apps (Settings > Application Manager > Google Play and Google Services). Next, remove your Google account, restart the device, and then re-add your Google account.

Error 919

Solution: Your device has run out of storage space. You can clean your cache, remove unused apps, or delete photos and videos.

Error 921

Solution: Delete the cache from the Google Play app (Settings > Application Manager > Google Play). If you are still seeing an error, delete the data from the Google Play app (Settings > Application Manager > Google Services). Finally, if issues persist, delete your Google account and then re-add it.

Wipe the cache partition:

1. Hold power button and select 'Power Off'

2. With device off, hold 'Volume Down' button and press power button. An image of an Android lying on its back will appear.

3. Press the Volume Down key twice until "Recovery mode" appears on the screen.

4. Press the Power key to restart in "Recovery mode." An image of an Android with a red triangle will appear.

5. While holding down the Power key, tap the Volume Up key.

6. The Android System Recovery screen will appear. Release all keys.

7. Use the Volume keys to scroll to wipe data cache partition and press the Power key to select.

8. The device will restart.

Connect to Wi-Fi networks

Turn on Wi-Fi & connect to a network

1. In your device’s  Settings menu, touch Wireless & networks > Wi-Fi.

   • Devices running Android 4.3 or lower have a different  Settings icon.
2. If Wi-Fi isn’t already on, slide the Wi-Fi switch to the On position.
3. The device scans for Wi-Fi networks. To connect, touch a network name.
   • Secured networks display a Lock icon and may ask for security details.
   • Your device will remember the network, along with security details, and connect automatically when in range.
   • To change network settings, touch & hold the network name.

Trouble connecting to Wi-Fi

If you can’t connect to Wi-Fi, try the following steps:

• Turn off your device, then turn it back on.
• Unplug your modem and/or router for 15 seconds.
• Remove your Wi-Fi network (instructions below), then add your Wi-Fi network again.
• Make sure you’re using the correct network password.
• Make sure that your router's security settings are set up properly.
• Confirm that your router's firmware (software used by the router) is up-to-date by following the manufacturer's instructions.
• Check your Wi-Fi connection at another location, like a friend’s house. If you can access Wi-Fi there, the problem might be specific to your original location, not your device.
If you still can't connect, contact, your internet service provider. You can also ask the Nexus Community or contactGoogle Play Support.

Advanced Wi-Fi settings

Configure Proxy Settings
For each Wi-Fi network you add, you can connect via a proxy.
1. In your device’s  Settings menu, touch Wireless & networks > Wi-Fi.

   • Devices running Android 4.3 or lower have a different  Settings icon.
2. Touch & hold a Wi-Fi network in the list of networks.
3. Touch Modify network.
4. Select Show advanced options. (You may have to lower the keyboard first. To do so, touch the  back button.)
5. Touch None under Proxy Settings, then touch Manual in the menu that opens.
6. Enter the proxy settings.
7. Touch Save.
Proxy settings for each Wi-Fi network must be set up separately.
Edit advanced Options(Sleep,Scanning,Poor Connections,Frequency Band,Optimization)
Edit advanced Wi-Fi settings:

1. In your device’s  Settings menu, touch Wireless & networks > Wi-Fi.

   • Devices running Android 4.3 or lower have a different  Settings icon.
2. In the Wi-Fi settings screen, touch  Menu > Advanced.
3. Touch one of the setting options below.

Network notification

• Touch to a receive notification in the Status bar when your device finds a Wi-Fi network.

Keep Wi-Fi on during sleep

• Choose how your device handles Wi-Fi when it is asleep.
• You can keep Wi-Fi on, keep Wi-Fi on only if your device is charging, or turn Wi-Fi off.
• If you turn Wi-Fi off, you may increase your mobile data usage.

Always allow scanning

• Check the box to improve location services and scan for Wi-Fi networks even when Wi-Fi is off.
• Wi-Fi scanning is primarily used to improve location services even when Wi-Fi is off.

Avoid poor connections

• Check the box to automatically avoid using networks with a low-quality or unreliable Internet connection.

Wi-Fi frequency band

• Touch to specify the frequency range of operation.

Wi-Fi optimization

• Check the box to minimize battery usage when Wi-Fi is on.

Wi-Fi networks

Add a hidden WiFi Network
You can add a Wi-Fi network that does not broadcast its name (SSID) or is out of range.
1. In your device’s  Settings menu, touch Wireless & networks > Wi-Fi.

   • Devices running Android 4.3 or lower have a different  Settings icon.
2. Slide the Wi-Fi switch to the On position.
3. Touch the  Plus icon.
4. Enter the network name (SSID) and other security details, if needed.
5. Touch Save.
Your device will connect to this network automatically the next time you are in range.
Remove a WiFi Network 
You can forget a saved Wi-Fi network if you don't want your device to connect automatically.
1. In your device’s  Settings menu, touch Wireless & networks > Wi-Fi.

   • Devices running Android 4.3 or lower have a different  Settings icon.
2. Slide the Wi-Fi switch to the On position.
3. In the Wi-Fi settings screen, touch the name of the network.
4. Touch Forget.

Use bookmarks (Article applies to Chrome for Mobile)

Bookmarks let you revisit your favorite webpages with one touch. Sign in to Chrome to sync your bookmarks to your Google Account and access them from any device. Learn more about signing in

Create Bookmarks

1. Touch in the omnibox (address bar) on Android devices. Touch Chrome menu > on iOS devices.
2. Edit the bookmark’s name and address if necessary.
3. Choose a folder for the bookmark. You can also create a new folder by touching the folder menu, then New Folder.
4. Touch Save.

Open a Bookmark

1. Touch Chrome menu > Bookmarks (or open a new tab and touch Bookmarks or ).
2. Touch the bookmark you want to visit.

Edit or Delete bookmarks

1. Touch Chrome menu > Bookmarks (or open a new tab and touch Bookmarks or ).
2. Touch and hold the bookmark you want to edit or delete.
• Touch Edit bookmark. Once you're finished editing, touch Save.
• Touch Delete bookmark to confirm.

Create a homescreen shortcut (Android only)

Add bookmarks you frequently use to your Android Home screen as shortcuts. 

Touch Chrome menu > Add to homescreen.

Nexus Connection Media Transfer PC Not Being Recognized (Solved)

1. Enable USB debugging: Go to phone settings -> About -> Tap build number repeatedly until developer menu is enabled. Go there and tick USB debugging.

2. On your PC, go to your device manager (when the Phone is plugged in and set to MTP), locate the phone, right click on it -> properties

3. go to the Driver tab

4. click Update Driver

5. click Browse my Computer for driver software

6. click Let my pick...

7. select USB Composite Device

8. finish up with the assistant

LTE for Nexus & Google Play edition devices

Compatible devices

The following devices available on Google Play are LTE-compatible:

• Nexus 5
• Nexus 7 (2013) LTE
• HTC One Google Play edition
• Samsung Galaxy S 4 Google Play edition

LTE networks & coverage

If your mobile data plan includes LTE coverage, your device will always try to connect to LTE. If an LTE network isn't available, your device may use another type of network, such as HSPA/HSPA+ or 3G.

Some devices are only compatible with LTE and won't connect to other types of networks.

Ensure your device is connected to LTE

You can check if your device is connected to LTE in two ways:

• Signal strength indicator. If your device is connected to LTE, you’ll see the  LTE connectivity indicator at the top of the screen.
  The LTE connectivity indicator appears only when your device isn't connected to Wi-Fi.
• Settings menu. Go to  Settings > About phone > Status > Mobile network type, and see if your device is connected to LTE.

LTE connectivity issues

The following examples can result in LTE connectivity issues:

• Your current mobile service plan doesn't include LTE coverage.
• Your SIM card is older and not compatible with LTE.
• Your SIM card isn't working correctly.

If you experience LTE connectivity or coverage issues, contact your mobile service provider.

Can't sign in on your Android device

You may be asked to enter your Google Account username and password on your Android device. Here are some situations where you're prompted to provide this information:

• You've made too many pattern attempts to unlock your screen.
• You're purchasing apps or other content on Google Play.
• You're accessing Gmail, YouTube, or another Google app.

If you can't sign in after you enter your username and password, you can follow troubleshooting steps to resolve the issue. You can also choose to reset your device to factory settings and add another Google Account.

Can't unlock your Android device

If you’ve made too many pattern attempts or forgotten your PIN or password, you can try other methods to unlock your Android device.

Sign in to your Google Account

For pattern passcodes only

If you set up a pattern passcode and made multiple attempts to unlock your device, you can touch Forgot Pattern and be prompted to enter your Google Account username and password. This will take you to the Security options in the main Settings menu, where you can reset your device’s password.

If you can’t sign in to your Google Account, try these troubleshooting steps to enter your username or password.

Reset your device to factory settings

If you can’t unlock your device using your pattern, PIN, or password, you can reset your phone or tablet to factory settings.

Important: Performing a factory data reset permanently erases all data on the device.

Factory reset using the bootloader menu

To reset a Nexus device to factory settings using the bootloader menu, select your device below for the factory data reset instructions:

• Nexus 4
• Nexus 7
• Nexus 10

If you have a different Android device and don't know how to perform a factory reset, visit your manufacturer's support site.

Factory reset using Android Device Manager

If you connected your device to Android Device Manager, you can remotely erase your device’s data.

1. Sign in to android.com/devicemanager.
2. Choose the device you want to erase from the menu.
3. Select Erase.

If you haven’t set up Android Device Manager, follow these steps to add your device.

Connect to keyboards, mice, & other devices

Important: For Nexus 4, USB is not supported for connecting these devices.

You can connect a keyboard, mouse, or even a joystick or other input device to your device via USB or Bluetooth and use it just as you would with a PC.

To connect more than one USB device at a time, use a powered USB hub to reduce the drain on your device's battery.

Important: Using external devices such as keyboards via USB will cause a significant additional drain on your battery, as will continuous use of a mouse via Bluetooth.

To pair and connect a Bluetooth input devices to your device:

1. Make sure your Bluetooth input device is in pairing mode.
2. Touch Settings > Wireless & Networks > Bluetooth.
3. Make sure Bluetooth is turned on.
4. Touch the name of your device near the top of the screen, so that the text below says "Visible to all nearby Bluetooth devices".
5. Touch Search for devices.
6. When the name or ID of your Bluetooth device appears, touch it and follow the instructions.

Keyboards

In addition to entering text, you can use your keyboard to navigate your device's features:

• Use the arrow keys to select items on screen.
• Pressing Return when an item is selected is equivalent to touching that item.
• Pressing Escape is equivalent to touching Back.
• Press Tab or Shift-Tab to move from field to field in a form or other screen with multiple text fields.

Mice

When you connect a mouse to your device and move the mouse, an arrow-shaped cursor appears, just as on a computer:

• Use the mouse to move the cursor.
• Clicking, pressing, and dragging with the mouse button is equivalent to touching, touching & holding, and dragging with your finger.
• Only one mouse button is supported.
• If your mouse has a trackball or scroll wheel, you can use it to scroll both vertically and horizontally.

Other input devices

You can connect joysticks, gamepads, and other input devices to your device. If they work without special drivers or adapters on your PC, they will likely work with your device. However, games and other apps must be designed to support any special features of an input device, such as dedicated buttons or other controls, to take full advantage of them.

Back up or erase your data

Back up photos, files, & music

Back Up Photos and Videos

You can use Auto Backup to automatically back up your photos and videos to Google+.

Upload Files & Folders To Google Drive

You can manually upload files to Google Drive and access them across your devices.

Back up Music using Music Manger 

Use the Music Manager to upload your music files to Google Play.

Back up your data using Android Backup Service

You can back up data connected to one or more of your Google Accounts using Android Backup Service. If you need to replace your device or erase its data, you can restore your data for any accounts that were previously backed up.

If you're using a tablet with multiple users, only the tablet's owner can see the backup & reset options.

To back up your data, follow these steps:

1. Open your device's Settings menu.
2. Under "Personal," touch Backup & reset.
3. Check the box next to "Back up my data." 

If you don't already have a backup account on your device, you can touch Backup account to add one.

Data & settings restored using Android Backup Service

When you add your Google Account to a Nexus or Google Play edition device, your data that was previously backed up is restored to the device.

Learn What data  &  Settings are restorted

Automatically restore app settings

You can choose to restore settings and other data when you reinstall an app. This feature requires that you are backing up your data with your Google Account and that the app is using the backup service. For certain apps, not all data may be backed up and restored.

To restore app settings on your device, follow these steps:

1. Open your device's Settings menu.
2. Under "Personal," touch Backup & restore.
3. Check the box next to "Automatic restore."
4. Erase your device's data

If you want to erase all your personal data from your device, follow these steps:

1. Open your device's Settings menu.
2. Under "Personal," touch Backup & reset.
3. Touch Reset phone or Reset tablet.

All of your data is erased from your device, including your Google Account, any other accounts, your system and app settings, and any downloaded applications.

After resetting your device, you'll need to re-enter the same information requested when you first set it up. If you've been backing up your data to a Google Account, an option during the setup process allows you to restore it.

Transfer files through USB

You can transfer photos, music, and other files between your computer and device using a USB cable. You can also transfer files from your device to a computer.

Windows transfer

1. Make sure your device’s screen is unlocked.
2. Connect your device to your computer using a USB cable.
   • If you’re asked to select a USB connection on your device, choose Media device (MTP).
3. Use the File Transfer window that pops up on your computer to drag and drop files, just like other external devices.
4. Eject your device from Windows, then unplug the USB cable.

Mac transfer

To transfer files, Android File Transfer must be installed on your computer. Android File Transfer is compatible with Mac OS X 10.5 or later and Android 3.0 or later.

1. Download and install Android File Transfer on your computer.
2. Open Android File Transfer. (The next time you connect your device, it should open automatically.)
3. Make sure your device’s screen is unlocked.
4. Connect your device to your computer using a USB cable.
   • If you’re asked to select a USB connection on your device, choose Media device (MTP).
5. Use the Android File Transfer window that pops up on your computer to drag and drop files.
6. Disconnect the USB cable when you’re finished.

Trouble transferring files through USB

If you’re having trouble transferring files, try the following steps:

• Try a different USB cable. Not all USB cables can transfer files.
• Test the mini-USB port on your Nexus device by connecting your device to a different computer.
• Test the USB port on your computer by connecting a camera or other device with USB.
• On your device, make sure that the USB computer connection is set to “Media device (MTP).”
  • Touch  Settings > Device > Storage. Then touch  Menu > USB computer connection. MTP should be selected by default, but you may have to uncheck MTP, check and uncheck Camera (PTP), and then recheck MTP.
• Update your Android OS to the latest version available.
• Restart your device.
• Restart your computer.

Windows troubleshooting

• Check your computer’s settings to make sure Windows automatically detects new hardware.

Mac troubleshooting

• Make sure that Android File Transfer is compatible with your computer. You must have Mac OS X 10.5 or later and Android 3.0 or later.
• Make sure the Android File Transfer application is open.